ZTE Z289L diagnostic port/emergency mode for firmware dump/load

This devices diagnostic port is achievable by url and the devices UI, it can also be achieved by the devices pinouts, it has 3, 2 on the back and one on the front under the chipset cover as you can see by my pics below, I have the diag/emergency port enabled via the pinout so I can dump the firmware and find the correct url to set the diag mode normally without having to take the device apart and manipulate the pinouts, I also attached a small video of the diag port and a screenshot of the freshly dumped firmware from this device.
Anyone else working on this device? feel free to post your findings in this thread with mine.

Here are the devices partitions, there sizes as well as there address's and names for you all to play with